Question: At which school was Barack Obama attending classes on January 1, 1988?
Paraphrase: On January 1, 1988, at which school was Barack Obama attending classes?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q76 p:P69 ?s . ?s ps:P69 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1988')) }